Friday's dawn revealed dramatic devastation, with the Okanagan County town of Pateros, home to 650 people, hit especially hard. Most residents evacuated in advance of the flames, and some returned Friday to see what, if anything, was left of their houses. There were no reports of injuries, officials said.

A wall of fire wiped out a block of homes on Dawson Street. David Brownlee, 75, said he drove away Thursday evening just as the fire reached the front of his home, which erupted like a box of matches.

"It was just a funnel of fire," Brownlee said. "All you could do was watch her go."

Next door, the Pateros Community Church appeared largely undamaged.

The pavement of U.S. Highway 97 stopped the advance of some of the flames, protecting parts of Pateros.

Firefighters poured water over the remnants of homes Friday morning, raising clouds of smoke, steam and dust. Two big water towers perched just above the town were singed black by the flames. The fire consumed utility poles from two major power lines, one feeding Pateros and the other feeding the towns of Winthrop and Twisp to the north.

Gov. Jay Inslee said about 50 fires were burning in Washington, which has been wracked by hot, dry weather and lightning. Some 2,000 firefighters were working in the eastern part of the state, with about a dozen helicopters from the Department of Natural Resources and the National Guard, along with a Washington State Patrol spotter plane.

Inslee said that the state was rapidly training about 1,000 additional National Guard troops and active duty military could be called in as well.

"This, unfortunately, is not going to be a one-day or one-week event," he said.

The Methow Valley, about 180 miles northeast of Seattle, is a popular area for hiking and fishing. Sections of several highways were closed.

"There's a lot of misplaced people, living in parking lots and stuff right now," said Rod Griffin, a fly-fishing guide who lives near Twisp. "The whole valley's in disarray."

He described long lines for gasoline, with at least one gas station out of fuel, and said cellphone towers must have been damaged as well because there was very little service.

In Brewster, 6 miles to the south, a hospital was evacuated as a precaution. The smoke was so thick there Friday it nearly obscured the Columbia River from adjacent highways. The smoke extended all the way to Spokane, 150 miles to the east.

Jacob McCann, a spokesman for the fire known as the Carlton Complex, said it "ran quite a bit" Thursday and officials were also able to get a better handle on its size. It blackened 260 square miles by Friday morning, up dramatically from the prior estimate of 28 square miles.

The county sheriff, Frank Rogers, said his team counted 30 houses and trailers destroyed in Pateros, another 40 in a community just outside the town at Alta Lake, and about 25 homes destroyed elsewhere in the county of about 40,000 people.

About 100 miles to the south, the Chiwaukum Creek Fire chased people from nearly 900 homes as it sent a dusting of ash over the Bavarian-themed village of Leavenworth.

Worsening wildfire activity has prompted the governor's offices in both Washington and Oregon to declare states of emergency, a move that allows state officials to call up the National Guard.

Fifteen large fires were reported around Oregon on Friday, burning across 565 square miles of timber, rangeland and grass. Dozens of homes were evacuated.